US8308144B2 - Diaphragm carburetor - Google Patents
Diaphragm carburetor Download PDFInfo
- Publication number
- US8308144B2 US8308144B2 US12/621,369 US62136909A US8308144B2 US 8308144 B2 US8308144 B2 US 8308144B2 US 62136909 A US62136909 A US 62136909A US 8308144 B2 US8308144 B2 US 8308144B2
- Authority
- US
- United States
- Prior art keywords
- carburetor
- fuel
- channel
- insulator
- chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M15/00—Carburettors with heating, cooling or thermal insulating means for combustion-air, fuel, or fuel-air mixture
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
- F02M17/02—Floatless carburettors
- F02M17/04—Floatless carburettors having fuel inlet valve controlled by diaphragm
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/20—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for cooling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the present invention relates to a diaphragm carburetor wherein the temperature of the carburetor is lowered to reduce the occurrence of bubbles in the fuel.
- Bubbles occur in the fuel in the engine carburetor of a hand-held mower, hand-held trimmer, or the like, the rotation of the engine fluctuates, impeding work. Bubbles occur primarily when the temperature inside the carburetor is increased by various types of heat from the engine.
- the carburetor unit is heated by heat generated by the engine when the engine is operated continuously, and the carburetor is cooled by the heat of vaporization of the fuel.
- the temperature of the carburetor is balanced by this simultaneous heating and cooling, and the carburetor is designed so that bubbles do not form in the fuel inside the carburetor in such a state.
- the fuel drawn from the fuel tank by the fuel pump passes through a fuel supply channel.
- the fuel passes through a fuel relay chamber that is formed integrally with an insulator, and since the insulator is somewhat heated by conduction of heat from the engine during prolonged operation of the engine, the fuel passing through the fuel relay chamber is also appropriately heated. Consequently, it is possible to reduce the difference in temperature between the fuel drawn out of the fuel relay chamber by the fuel pump of the carburetor and the carburetor that is heated to a relatively high temperature by the engine heat. As a result, sudden temperature changes of the fuel inside the carburetor can be prevented and evaporation of the fuel can be suppressed.
- An object of the present invention is to provide a diaphragm carburetor wherein heat transferred from the engine to the carburetor through the insulator is reduced to lower the temperature of the carburetor and reduce the occurrence of bubbles in the fuel.
- the carburetor of the present invention is a diaphragm carburetor for a multi-purpose machine, wherein fuel pumped by a pump chamber of a carburetor is divided into two branches so that one branch extends toward a constant-pressure fuel chamber and is a main fuel channel for feeding a fuel-air mixture needed for normal engine operation, and the other branch is a fuel circulation channel that extends toward an engine body or cylinder as a heat source, passes through while cooling the inside of an insulator and a portion of a carburetor unit closer to the heat source than the constant-pressure fuel chamber of the carburetor, and then returns to the fuel tank.
- fuel pumped by a pump chamber of the carburetor is divided into two branches from between a valve on the exit side of the pump chamber and a valve seat of a constant-pressure fuel chamber, one branch extending toward a main fuel channel, and the other branch extending toward a cooling channel for cooling a heat source.
- fuel pumped by a pump chamber of the carburetor is divided into two branches from between a valve on the exit side of the pump chamber and a measurement valve seat, one branch extending toward a main fuel channel, and the other branch extending toward a cooling channel for cooling a heat source.
- fuel pumped by a pump chamber of the carburetor is passed through a cooling channel that extends toward an engine body or cylinder, which acts as a heat source for the carburetor, and is divided into two branches so that one branch is a main fuel channel, and the other branch is a fuel circulation channel for returning to a fuel tank.
- a cooling channel for cooling the heat source is provided at the bottom of a body side surface on the throttle side of a carburetor unit.
- the carburetor of the present invention is a diaphragm carburetor for a multi-purpose machine, wherein fuel pumped by a pump chamber of a carburetor is divided into two branches so that one branch extends toward a constant-pressure fuel chamber and is a main fuel channel for feeding a fuel-air mixture needed for normal engine operation, and the other branch is a fuel circulation channel that extends toward an engine body or cylinder as a heat source, passes through while cooling the inside of an insulator and a portion of a carburetor unit closer to the heat source than the constant-pressure fuel chamber of the carburetor, and then returns to the fuel tank. Therefore, heat conducted from the engine to the carburetor through the insulator is reduced to lower the temperature of the carburetor unit and reduce the occurrence of bubbles in the fuel.
- fuel pumped by a pump chamber of the carburetor is divided into two branches from between a valve on the exit side of the pump chamber and a valve seat of a constant-pressure fuel chamber, one branch extending toward a main fuel channel, and the other branch extending toward a cooling channel for cooling a heat source; or fuel pumped by a pump chamber of the carburetor is passed through a cooling channel that extends toward an engine body or cylinder, which acts as a heat source for the carburetor, and is divided into two branches so that one branch is a main fuel channel, and the other branch is a fuel circulation channel for returning to a fuel tank. Therefore, heat conducted from the engine to the carburetor through the insulator is reduced to lower the temperature of the carburetor unit and reduce the occurrence of bubbles in the fuel.
- FIGS. 2( a ) and 2 ( b ) are longitudinal sectional views showing an embodiment of the diaphragm carburetor of the present invention
- FIG. 4 is a flow diagram showing an embodiment of the carburetor of the present invention.
- FIGS. 5( a ) through 5 ( d ) are side views showing the carburetor unit according to another embodiment
- FIG. 6 is a flow diagram showing another embodiment of the carburetor of the present invention.
- FIG. 7 is a side view showing the circulation fuel channel according to another embodiment
- FIG. 8 is a side view showing the circulation fuel channel according to another embodiment.
- FIG. 9 is a side view showing the circulation fuel channel according to another embodiment.
- FIG. 1 is an outline view showing the engine of a hand-held mower, a hand-held trimmer, or the like.
- a carburetor 3 is mounted to one side of an engine 1 via an insulator 2 that has an intake channel communicated with an intake port of the engine 1 , and an air cleaner 4 is mounted to the entrance side of the intake of the carburetor 3 .
- a muffler 5 connected to an exhaust port of the engine 1 is mounted to the other side of the engine 1 .
- a fuel tank is installed on the underside of the engine 1 .
- FIGS. 2( a ) and 2 ( b ) are longitudinal sectional views showing the diaphragm carburetor of the present invention.
- an entrance channel 6 shown in FIG. 2( a ) is connected to a fuel supply channel for feeding fuel from a fuel tank (not shown), an upstream fuel channel 7 continues into the entrance channel 6 , the upstream fuel channel 7 is communicated with a pump chamber 8 , a downstream fuel channel 9 continues into the pump chamber 8 , and the downstream fuel channel 9 is divided into two branches to form one branch as a main fuel channel 11 connected to a constant-pressure fuel chamber 10 , and the other branch as a fuel circulation channel 12 .
- the main fuel channel 11 is communicated with the constant-pressure fuel chamber 10 via a fuel control valve 13 , and fuel is fed to the engine 1 from the constant-pressure fuel chamber 10 .
- excess fuel in the constant-pressure fuel chamber 10 flows from the constant-pressure fuel chamber 10 to a return channel 14 shown in FIG. 2( b ), and then from a primer syringe 15 to a discharge channel 18 via a choke 16 and a non-return valve 17 , and returns from the discharge channel 18 through a fuel drainage channel (not shown).
- FIGS. 3( a ) through 3 ( d ) are side views showing the carburetor unit of the present invention.
- an opening is formed in a mounting surface of the insulator 2 via a first through-channel 19 bored along a mounting surface of the primer syringe 15 from the downstream fuel channel 9 .
- a meandering groove 20 communicated with the aforementioned opening is formed along the surface by which the carburetor 3 is mounted to the insulator 2 , or along the body side surface of the insulator 2 on the carburetor side, as shown in FIG. 7 .
- FIG. 3( a ) through 3 ( d ) are side views showing the carburetor unit of the present invention.
- FIG. 3( a ) an opening is formed in a mounting surface of the insulator 2 via a first through-channel 19 bored along a mounting surface of the primer syringe 15 from the downstream fuel channel 9 .
- a meandering groove 20 communicated with the aforementioned opening is formed
- a second through-channel 21 bored along the surface opposite the mounting surface of the primer syringe 15 is furthermore provided at the terminal end of the meandering groove 20 and, as shown in FIG. 3( d ), is formed so as to be communicated with the discharge channel 18 of the mounting surface of the primer syringe 15 through a feeding groove 22 in the mounting surface of the air cleaner 4 .
- the meandering groove 20 or feeding groove 22 is covered by a cover 24 via a seal member 23 on the external periphery thereof, and the cover 24 is fixed to the carburetor 3 by a cover fixing screw 25 to form a cooling channel.
- the circulation channel 12 is formed so as to pass through the body side surface on the insulator side of the carburetor 3 as shown in FIG. 3( b ), or the body side surface of the insulator 2 on the carburetor side as shown in FIG. 7 , and return to the fuel tank.
- Fuel that passes through the conventional main fuel channel 11 connected to the constant-pressure fuel chamber 10 passes through the carburetor 3 in the same manner as in a regular carburetor, and is mixed with air and fed to the engine 1 .
- the excess fuel that occurs in the constant-pressure fuel chamber 10 due to operation of the priming pump at the time of starting passes through the priming pump 15 from the constant-pressure fuel chamber 10 and returns to the fuel tank from the discharge channel 18 .
- a second through-channel 21 bored along the surface opposite the mounting surface of the primer syringe 15 is furthermore provided at the terminal end of the meandering groove 20 and, as shown in FIG. 5( d ), is formed so as to pass through a branching channel 26 in the mounting surface of the air cleaner 4 , one branch extending toward the constant-pressure fuel chamber 10 and the other branch being communicated with the discharge channel 18 of excess fuel for priming.
- the fuel circulation channel 12 is thus formed so as to pass through the body side surface of the carburetor 3 on the insulator side, or the body side surface of the insulator 2 on the carburetor side, as shown in FIGS. 5( a ) through 5 ( d ), and after cooling, branch at the branching channel 26 into one branch that extends toward the constant-pressure fuel chamber 10 and another branch that extends halfway around the carburetor 3 and returns to the fuel tank.
- the meandering groove 20 or branching channel 26 is covered by a cover 24 via a seal member 23 on the external periphery thereof, and the cover 24 is fixed to the carburetor 3 by a cover fixing screw 25 to form a cooling channel.
- the fuel cooled by the fuel tank is drawn in again by the pump action of the carburetor 3 , the fuel absorbs the heat conducted from the engine 1 , and the fuel is discharged in the fuel tank.
- heat transfer from the engine 1 to the carburetor 3 can be reduced, and a low temperature can be stably maintained.
- a non-return valve or a choke for pressure adjustment is provided to the fuel circulation channel 12 on the insulator cooling side.
- a cooling channel for cooling the heat source may be provided at the bottom of the body side surface on the throttle side of the carburetor unit, the meandering groove 20 may be provided inside the insulator 2 rather than in the carburetor 3 to form the cooling channel shown in FIG. 8 , and a spacer 27 provided with a cooling channel formed from aluminum or another metal having high thermal conductivity may be sandwiched between the carburetor 3 and the insulator 2 , as shown in FIG. 9 .
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Means For Warming Up And Starting Carburetors (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/676,055 US8632057B2 (en) | 2008-12-02 | 2012-11-13 | Diaphragm carburetor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008306993A JP2010133253A (ja) | 2008-12-02 | 2008-12-02 | 気化器 |
JP2008-306993 | 2008-12-02 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/676,055 Division US8632057B2 (en) | 2008-12-02 | 2012-11-13 | Diaphragm carburetor |
Publications (2)
Publication Number | Publication Date |
---|---|
US20110115106A1 US20110115106A1 (en) | 2011-05-19 |
US8308144B2 true US8308144B2 (en) | 2012-11-13 |
Family
ID=42344771
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/621,369 Active 2030-12-31 US8308144B2 (en) | 2008-12-02 | 2009-11-18 | Diaphragm carburetor |
US13/676,055 Expired - Fee Related US8632057B2 (en) | 2008-12-02 | 2012-11-13 | Diaphragm carburetor |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/676,055 Expired - Fee Related US8632057B2 (en) | 2008-12-02 | 2012-11-13 | Diaphragm carburetor |
Country Status (2)
Country | Link |
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US (2) | US8308144B2 (ja) |
JP (1) | JP2010133253A (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130106005A1 (en) * | 2011-10-27 | 2013-05-02 | James Earl Faske | Fuel evaporator |
US8632057B2 (en) * | 2008-12-02 | 2014-01-21 | Zama Japan Kabushiki Kaisha | Diaphragm carburetor |
US10465642B2 (en) | 2017-03-27 | 2019-11-05 | Kohler Co. | Carburetor drain |
US11008978B2 (en) * | 2019-03-05 | 2021-05-18 | Kohler Co. | Bail driven stale fuel evacuation |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9382876B2 (en) * | 2013-12-23 | 2016-07-05 | Zama Japan Kabushiki Kaisha | Main fuel jet and nozzle assembly for a carburetor |
Citations (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1974586A (en) * | 1932-02-01 | 1934-09-25 | Bendix Aviat Corp | Carburetor |
US2134877A (en) * | 1936-11-23 | 1938-11-01 | Int Harvester Co | Carburetor |
US2615696A (en) * | 1948-02-17 | 1952-10-28 | Bendix Aviat Corp | Carburetor |
US3196926A (en) * | 1962-05-28 | 1965-07-27 | Ford Motor Co | Fuel supply systems |
US3628516A (en) * | 1969-03-10 | 1971-12-21 | Jean Louis Perrin | Internal combustion engine carburetor |
US4036188A (en) * | 1974-07-18 | 1977-07-19 | Toyota Jidosha Kogyo Kabushiki Kaisha | Carburetor equipped with a cooling system |
US4084564A (en) * | 1974-09-09 | 1978-04-18 | Borg-Warner Corporation | Heat exchanger system for charge forming apparatus |
US4098236A (en) * | 1976-10-29 | 1978-07-04 | Toyota Jidosha Kogyo Kabushiki Kaisha | Device for supplying fuel to an internal combustion engine |
US4364355A (en) * | 1979-07-18 | 1982-12-21 | Hitachi, Ltd. | Electronically controlled fuel supply apparatus for internal combustion engine |
JPS5915658A (ja) * | 1982-07-16 | 1984-01-26 | Fuji Heavy Ind Ltd | 気化器のパ−コレ−シヨン防止装置 |
US4499032A (en) * | 1982-04-20 | 1985-02-12 | Fuji Jukogyo Kabushiki Kaisha | System for preventing the percolation of fuel in a carburetor |
US4716878A (en) * | 1985-05-02 | 1988-01-05 | Kioritz Corporation | Device for mounting a carburetor having a body made of synthetic resin |
US4752420A (en) * | 1986-04-18 | 1988-06-21 | Walbro Far East, Inc. | Diaphragm carburetor for internal combustion engine |
US4769185A (en) * | 1986-09-30 | 1988-09-06 | Walbro Far East, Inc. | Diaphragm carburetor for internal combustion engine |
US4768492A (en) * | 1987-01-09 | 1988-09-06 | Brunswick Corporation | Marine propulsion system with fuel line cooler |
US4941999A (en) * | 1988-03-23 | 1990-07-17 | Solex | Fuel supply device with cooled flow chamber |
JPH047703A (ja) | 1990-04-26 | 1992-01-13 | Mazda Motor Corp | 生産ライン故障時の復帰方法 |
US5195493A (en) * | 1992-06-18 | 1993-03-23 | Re-Tech, Inc. | Adjustable electronic fuel management system for vehicle engines |
US6644631B2 (en) * | 2001-11-30 | 2003-11-11 | Walbro Japan, Inc. | Diaphragm-type carburetor |
US20050179146A1 (en) * | 2004-02-16 | 2005-08-18 | Zama Japan Co., Ltd. | Fuel pressure regulating apparatus for carburetors |
US20070023934A1 (en) * | 2005-08-01 | 2007-02-01 | Andreas Stihl Ag & Co., Kg | Carburetor of an internal combustion engine |
JP4007703B2 (ja) | 1998-10-22 | 2007-11-14 | 本田技研工業株式会社 | フロートレス型気化器への燃料供給装置 |
US7309061B2 (en) * | 2005-07-13 | 2007-12-18 | Zama Japan Co., Ltd. | Diaphragm-type carburetors |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2512806Y2 (ja) * | 1987-12-26 | 1996-10-02 | テイケイ気化器株式会社 | 気化器の断熱装置 |
JPH08200160A (ja) * | 1995-01-25 | 1996-08-06 | Shinagawa Diecast Kogyo Kk | 膜式気化器 |
JP2010133253A (ja) * | 2008-12-02 | 2010-06-17 | Zama Japan Co Ltd | 気化器 |
-
2008
- 2008-12-02 JP JP2008306993A patent/JP2010133253A/ja active Pending
-
2009
- 2009-11-18 US US12/621,369 patent/US8308144B2/en active Active
-
2012
- 2012-11-13 US US13/676,055 patent/US8632057B2/en not_active Expired - Fee Related
Patent Citations (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1974586A (en) * | 1932-02-01 | 1934-09-25 | Bendix Aviat Corp | Carburetor |
US2134877A (en) * | 1936-11-23 | 1938-11-01 | Int Harvester Co | Carburetor |
US2615696A (en) * | 1948-02-17 | 1952-10-28 | Bendix Aviat Corp | Carburetor |
US3196926A (en) * | 1962-05-28 | 1965-07-27 | Ford Motor Co | Fuel supply systems |
US3628516A (en) * | 1969-03-10 | 1971-12-21 | Jean Louis Perrin | Internal combustion engine carburetor |
US4036188A (en) * | 1974-07-18 | 1977-07-19 | Toyota Jidosha Kogyo Kabushiki Kaisha | Carburetor equipped with a cooling system |
US4084564A (en) * | 1974-09-09 | 1978-04-18 | Borg-Warner Corporation | Heat exchanger system for charge forming apparatus |
US4098236A (en) * | 1976-10-29 | 1978-07-04 | Toyota Jidosha Kogyo Kabushiki Kaisha | Device for supplying fuel to an internal combustion engine |
US4364355A (en) * | 1979-07-18 | 1982-12-21 | Hitachi, Ltd. | Electronically controlled fuel supply apparatus for internal combustion engine |
US4499032A (en) * | 1982-04-20 | 1985-02-12 | Fuji Jukogyo Kabushiki Kaisha | System for preventing the percolation of fuel in a carburetor |
JPS5915658A (ja) * | 1982-07-16 | 1984-01-26 | Fuji Heavy Ind Ltd | 気化器のパ−コレ−シヨン防止装置 |
US4716878A (en) * | 1985-05-02 | 1988-01-05 | Kioritz Corporation | Device for mounting a carburetor having a body made of synthetic resin |
US4752420A (en) * | 1986-04-18 | 1988-06-21 | Walbro Far East, Inc. | Diaphragm carburetor for internal combustion engine |
US4769185A (en) * | 1986-09-30 | 1988-09-06 | Walbro Far East, Inc. | Diaphragm carburetor for internal combustion engine |
US4768492A (en) * | 1987-01-09 | 1988-09-06 | Brunswick Corporation | Marine propulsion system with fuel line cooler |
US4941999A (en) * | 1988-03-23 | 1990-07-17 | Solex | Fuel supply device with cooled flow chamber |
JPH047703A (ja) | 1990-04-26 | 1992-01-13 | Mazda Motor Corp | 生産ライン故障時の復帰方法 |
US5195493A (en) * | 1992-06-18 | 1993-03-23 | Re-Tech, Inc. | Adjustable electronic fuel management system for vehicle engines |
JP4007703B2 (ja) | 1998-10-22 | 2007-11-14 | 本田技研工業株式会社 | フロートレス型気化器への燃料供給装置 |
US6644631B2 (en) * | 2001-11-30 | 2003-11-11 | Walbro Japan, Inc. | Diaphragm-type carburetor |
US20050179146A1 (en) * | 2004-02-16 | 2005-08-18 | Zama Japan Co., Ltd. | Fuel pressure regulating apparatus for carburetors |
US7309061B2 (en) * | 2005-07-13 | 2007-12-18 | Zama Japan Co., Ltd. | Diaphragm-type carburetors |
US20070023934A1 (en) * | 2005-08-01 | 2007-02-01 | Andreas Stihl Ag & Co., Kg | Carburetor of an internal combustion engine |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8632057B2 (en) * | 2008-12-02 | 2014-01-21 | Zama Japan Kabushiki Kaisha | Diaphragm carburetor |
US20130106005A1 (en) * | 2011-10-27 | 2013-05-02 | James Earl Faske | Fuel evaporator |
US8672300B2 (en) * | 2011-10-27 | 2014-03-18 | James Earl Faske | Fuel evaporator |
US10465642B2 (en) | 2017-03-27 | 2019-11-05 | Kohler Co. | Carburetor drain |
US10823124B2 (en) | 2017-03-27 | 2020-11-03 | Kohler Co. | Carburetor drain |
US11125195B2 (en) | 2017-03-27 | 2021-09-21 | Kohler Co. | Carburetor drain |
US11408382B2 (en) | 2017-03-27 | 2022-08-09 | Kohler Co. | Carburetor drain |
US11614060B2 (en) | 2017-03-27 | 2023-03-28 | Kohler Co. | Carburetor drain |
US11008978B2 (en) * | 2019-03-05 | 2021-05-18 | Kohler Co. | Bail driven stale fuel evacuation |
US11591989B2 (en) | 2019-03-05 | 2023-02-28 | Kohler Co. | Bail driven stale fuel evacuation |
Also Published As
Publication number | Publication date |
---|---|
US20110115106A1 (en) | 2011-05-19 |
US20130119568A1 (en) | 2013-05-16 |
JP2010133253A (ja) | 2010-06-17 |
US8632057B2 (en) | 2014-01-21 |
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Owner name: ZAMA JAPAN KABUSHIKI KAISHA, JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SAITO, TAMOTSU;REEL/FRAME:029689/0058 Effective date: 20130111 |
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